ml2251 Oki Semiconductor, ml2251 Datasheet - Page 3

• Manufacturer Part Number: ml2251
• Description: 2-channel Mixing Oki Adpcm Algorithm-based Speech Synthesis Lsi
• Manufacturer: Oki Semiconductor

FEATURES
● Non-linear 8-bit PCM, 8-bit PCM, 16-bit PCM, 2-bit ADPCM2, and 4-bit ADPCM2 algorithms
● Serial input/parallel input selectable
● Phrase control table function i.e., user definable phrase control table function
● 2 channels mixing function
●Master clock frequency:
● Sampling frequency:
● Maximum number of phrases:
● Sound volume adjustment function built in (2 sounds independently adjustable in 29 steps)
● External voice data can be input
●14-bit D/A converter built in
● Built-in low-pass filter:
● Package:
OKI Semiconductor
ML22Q54
ML22Q58
ML2251
ML2252
ML2253
ML2254
ML2256
Type
44-pin plastic QFP
33-pin W-CSP
ROM capacity
512 Kbit
1 Mbit
3 Mbit
4 Mbit
4 Mbit
6 Mbit
8 Mbit
F
SAM
195.5
261.1
261.1
392.1
522.2
31.7
64.5
= 4.0 kHz F
4.096 MHz
4.0 kHz, 5.3 kHz, 6.0kHz, 6.4 kHz, 8.0 kHz, 10.7 kHz, 12.0kHz,
12.8 kHz, 16.0 kHz, 21.3 kHz, 24.0kHz, 25.6 kHz, 32.0 kHz,
42.7 kHz, 48 kHz
256 phrases
Digital filter
(QFP44-P-910-0.80-2K)
(ML2251-XXXGA/ ML2252-XXXGA/ ML2253-XXXGA/
ML2254-XXXGA /ML2256-XXXGA / ML22Q54GA/ML22Q58GA)
(P-VFLGA33-5.03X5.78-0.80-W)
(ML2253-XXXHB/ ML2254-XXXHB)
Maximum playback time length (sec) (In 4-bit ADPCM2)
SAM
122.2
163.2
163.2
245.1
326.4
19.8
40.3
= 6.4 kHz F
SAM
130.5
130.5
196.0
261.0
= 8.0 kHz F
15.8
32.2
97.7
SAM
130.4
16.1
48.8
65.2
65.2
98.0
= 16 kHz F
7.9
FEDL2250DIGEST-06
ML2250 family
SAM
24.4
32.6
32.6
49.0
65.2
= 32 kHz
3.9
8.0
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